— WSDL – Web Services Description Language
— WSDL is an XML grammar for describing a web service
as a collection of access end-points capable of exchanging
messages in a procedure- or document-oriented fashion (p. 72)
— The reasonable flow is to create service methods and
than generate WSDL from code using tools.
— Best practices: web service is (functionally) coarse-grained
and messages are more business-oriented than programmatic.